[dpdk-dev] [v2] net/ixgbe: check illegal packets
Ye Xiaolong
xiaolong.ye at intel.com
Mon Feb 17 17:00:01 CET 2020
On 02/17, Xiao Zhang wrote:
>Some illegal packets will lead to TX hang. This patch checks those
>illegal packets and protects TX from hanging.
>
>Fixes: 7829b8d52be0 ("net/ixgbe: add Tx preparation")
>Cc: stable at dpdk.org
>
>Signed-off-by: Xiao Zhang <xiao.zhang at intel.com>
>---
>v2 change the minimum packet length according to the datasheet.
>---
> drivers/net/ixgbe/ixgbe_rxtx.c | 6 ++++++
> drivers/net/ixgbe/ixgbe_rxtx.h | 2 ++
> 2 files changed, 8 insertions(+)
>
>diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
>index 7b398f1..f839bca 100644
>--- a/drivers/net/ixgbe/ixgbe_rxtx.c
>+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
>@@ -986,6 +986,12 @@ ixgbe_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
> return i;
> }
>
>+ /* check the size of packet */
>+ if (m->pkt_len < IXGBE_TX_MIN_PKT_LEN) {
>+ rte_errno = EINVAL;
>+ return i;
>+ }
>+
> #ifdef RTE_LIBRTE_ETHDEV_DEBUG
> ret = rte_validate_tx_offload(m);
> if (ret != 0) {
>diff --git a/drivers/net/ixgbe/ixgbe_rxtx.h b/drivers/net/ixgbe/ixgbe_rxtx.h
>index 000c5b1..20a8b29 100644
>--- a/drivers/net/ixgbe/ixgbe_rxtx.h
>+++ b/drivers/net/ixgbe/ixgbe_rxtx.h
>@@ -53,6 +53,8 @@
>
> #define IXGBE_TX_MAX_SEG 40
>
>+#define IXGBE_TX_MIN_PKT_LEN 14
>+
> #define IXGBE_PACKET_TYPE_MASK_82599 0X7F
> #define IXGBE_PACKET_TYPE_MASK_X550 0X10FF
> #define IXGBE_PACKET_TYPE_MASK_TUNNEL 0XFF
>--
>2.7.4
>
Acked-by: Xiaolong Ye <xiaolong.ye at intel.com>
Applied to dpdk-next-net-intel, Thanks.
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